男女共享（英文：Unisex）是代表一样东西同时适合两性（男性跟女性）使用。英文里亦可解作不尊重某一个性别。

这个用词在六十年代时非正式和适当地使用。尽管英文“Uni-”是来自拉丁文“unus”，并解为“one”（一个），但从字词看得出，“Uni-”已经在英文里面改变了词义，其意思为“share”（分享），可以透过生词“uniited”及“universal”看到。总结以上，就可以明白男女两用的定义，就是“男女共享” 。

同时服务男跟女的发型屋和美容沙龙也偶然被称作“Unisex”。比起其他较为传统的做法（分开男跟女，例如是衣服店），这个方法显的特别得多。

In biology, gonochorism (Greek offspring + disperse) or unisexualism or gonochory describes the state of having just one of at least two distinct sexes in any one individual organism. The term is most often used with animals, in which the individual organisms are often gonochorous. Gonochory is less common in plants. For example, in flowering plants, individual flowers may be hermaphrodite (i.e., bisexual, with both stamens and ovaries) or gonochorous (unisexual), having either no stamens (i.e. no male parts) or no ovaries (i.e. no female parts). Among flowering plant species that have unisexual flowers, some also produce hermaphrodite flowers, and the three types occur in different arrangements on separate plants; the plants can be monoecious, dioecious, polygamomonoecious, polygamodioecious, andromonoecious, or gynomonoecious.